ONEX 75cm Anti-Burst Gym Ball – 300KG Heavy-Duty Fitness & Birthing Ball with Pump

ONEX Gym Ball 75 cm – Anti-Burst Exercise Ball with Pump for Home & Gym | Yoga, Pilates, Pregnancy, Core Strength, Balance & Posture Training Fitness Ball for Men & Women

activates deep spinal stabilizers, strengthens core muscles, and improves posture during workouts or active desk seating. Standard lightweight fitness spheres stretch out under pressure, squishing flat under body weight and creating awkward balance angles that cause lower back fatigue.

High-Density 300 KG Polymer Wall Beats Standard Thin Vinyl

Cheap inflatable spheres lack structural density, leading to sudden air leaks and unsafe sagging when supporting full weight. ONEX crafts this 75 cm core trainer from extra-thick, non-slip PVC engineered with slow-deflation anti-burst technology rated to handle up to 300 kg. Paired with an included quick-inflation hand pump and available in sleek silver, black, purple, or red finishes, the ribbed tactile surface grips studio floors securely to deliver reliable stability during intense plank variations, Pilates, and prenatal birthing drills.

Heavy-Duty Core & Posture Features

• 300 KG Certified Anti-Burst Casing: Extra-thick PVC structure retains its round shape under high loads and releases air slowly if punctured.
• Ergonomic 75 cm Diameter Sizing: Scaled dimensions support natural hip-to-knee alignment for core training, pregnancy comfort, and active office seating.
• Non-Slip Ribbed Surface Texture: Raised tactile rings prevent slipping on polished hardwood, tile, or gym flooring.
• Rapid Inflation Set Included: Comes complete with a dedicated manual hand pump for fast initial setup and effortless pressure adjustments.

Technical Specifications

Active Ergonomics for Work and Workouts

Swap out standard desk seating for this 75 cm silver sphere to keep core muscles engaged throughout your workday, then transition straight into evening hamstring curls, pelvic tilts, and abdominal crunches. When traveling or clearing room space, deflate the casing using standard valve tools to pack it flat.

Delivery

We deliver to mainland UK addresses (with tracking). Delivery options, costs and estimated times are shown at checkout and in our Shipping Policy.

FAQs

Q: How does the anti-burst safety casing function if the ball gets punctured?

A: The dense PVC composite is engineered to release air slowly rather than popping, allowing you to dismount safely without a sudden drop.

Q: Is a pump included to inflate the 75 cm gym ball right away?

A: Yes, every ONEX 75 cm gym ball includes a dedicated hand pump for fast inflation straight out of the box.

Q: How does delivery work?

A: We deliver to mainland UK addresses (with tracking). Delivery options, costs and estimated times are shown at checkout and in our Shipping Policy.

Last updated: November 2026

Fitness Accessories Hub, operated by MENSARK LTD, delivers across mainland Great Britain.

1. Order Processing

Orders are processed within 1 to 2 business days (Monday to Friday, excluding UK bank holidays). If there is a delay because of high order volumes or courier issues, we will email you straight away.

2. Delivery Options and Timelines

Standard Delivery: 3 to 5 business days to mainland UK addresses.
Express Delivery: 2 to 3 business days to mainland UK addresses.
Delivery charges depend on your order value and the option you choose, and are shown at checkout before you pay.

3. Areas We Do Not Currently Deliver To

Scottish Highlands: AB36-38, AB55-56, FK17-21, IV1-39, IV52-54, IV63, KW1-14, PA21-40, PH19-26, PH30-41, PH49-50.
Scottish Islands: HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE1-3.
Northern Ireland: all BT postcodes.
Isle of Man: all IM postcodes.
Isles of Scilly: TR21-25.
Channel Islands: all GY (Guernsey) and JE (Jersey) postcodes.

4. Supplier Delivery

Some items are sent directly from our suppliers or their delivery partners, so your parcel may arrive in the supplier's packaging or separately from other items in the same order. Fitness Accessories Hub remains your seller and your contact for any delivery issue.

5. Order Tracking

When your order is dispatched, you will receive an email with your tracking number and a link to follow your parcel. Tracking can take up to 24 hours to become active.

6. Delayed, Lost or Damaged Parcels

If your order arrives damaged or is significantly delayed, please email support@fitnessaccessorieshub.co.uk within 48 hours of the delivery date, with your order number and photos of the packaging and product. We will arrange a replacement or refund where appropriate.

7. Failed Delivery

Please make sure your delivery address is correct at checkout. If a parcel comes back to us because of an incorrect address or a missed collection, we may need to charge for redelivery.

Contact Us

Email: support@fitnessaccessorieshub.co.uk
Phone / WhatsApp: +44 7462 229248 (Monday to Friday, 9:00 AM to 5:00 PM UK time)
Fitness Accessories Hub is a trading name of MENSARK LTD, a private limited company registered in England and Wales. Company Number: 16552046. Registered Office: 497 High Road, Ilford, Essex, IG1 1TZ, United Kingdom.

How your order works

This order is based on a promise to sell. The product will be sourced from our supplier and delivered to you within the stated timeframe. The sale will be completed once the item is delivered to you. Kindly leave honest feedback after receiving your order.