Exercise Balls
Exercise Balls — Gym Ball, Birthing Ball & Pilates Ball
Looking for exercise balls in the UK? ROMIX stocks three distinct types — each built for a specific purpose, all anti-burst rated, and all shipped free from our UK warehouse with a pump or inflation tool included.
65cm Anti-Burst Gym Ball — Core Training & Desk Use
The 65cm gym ball handles core strengthening, active desk sitting, Pilates, and physiotherapy. The honeycomb anti-burst structure ensures slow, safe deflation if punctured — never sudden popping. Rated to 250kg. Includes a free foot pump and spare plugs. Rated 4.77★ by 120+ customers.
Height guide: Suits adults between 5'4" and 6'0" (163–183cm). If you're under 5'4", inflate the same ball to around 50–60% capacity — this lowers the seating height to a comfortable level without needing a different size.
Anti-Burst Maternity Ball — Labour Prep & Pregnancy Support
The maternity ball with pump is specifically designed for pregnancy — from the second trimester through labour and postnatal recovery. It relieves lower back pain and SPD, encourages optimal baby positioning, and can replace your desk chair for more comfortable working during pregnancy. Midwife-recommended, 200kg rated, phthalate-free medical-grade PVC. Includes a hand pump.
25cm Soft Pilates Ball — Core, Rehab & Pelvic Floor
The small Pilates ball is a targeted tool for squeezing between knees, placing under the lower back, or gripping between ankles — activating deep core stabilisers, inner thighs, and pelvic floor muscles that standard mat exercises miss. Widely used by physiotherapists for rehabilitation after knee surgery, hip replacement, and postnatal recovery. Inflates with the included straw in seconds. Rated 4.75★ by 120+ customers.
Which Exercise Ball Do You Need?
Choose the 65cm gym ball if: you want a core training tool, need active desk seating, or are doing Pilates and stability work.
Choose the maternity ball if: you're pregnant and want dedicated support for back pain, SPD, labour preparation, or postnatal recovery.
Choose the 25cm Pilates ball if: you want to intensify mat exercises, strengthen your pelvic floor, or support physiotherapy rehabilitation.
Frequently Asked Questions
Q: Which size exercise ball should I choose?
A: The 65cm gym ball suits most adults between 5'4" and 6'0". If you're under 5'4", inflate the ball to around 50–60% capacity to lower the seating height — no different size needed. For pregnancy use, the dedicated maternity ball is the right choice regardless of height.
Q: Are these balls anti-burst?
A: Yes. All three balls use anti-burst construction — they deflate slowly and safely if punctured rather than popping suddenly. The 65cm gym ball uses a honeycomb internal structure; the maternity ball is rated to 200kg for full pregnancy safety.
Q: Do the balls come with a pump?
A: Yes. The 65cm gym ball includes a free foot pump and spare plugs. The maternity ball includes a hand pump and adaptor. The 25cm Pilates ball inflates with the included straw — no pump required.
Q: Can I use the gym ball during pregnancy?
A: For dedicated pregnancy support — labour preparation, SPD relief, and back pain — we recommend the maternity ball, which is purpose-sized and midwife-recommended. The 65cm gym ball is suitable for general gentle exercise during pregnancy but is not purpose-built for maternity use.
Also in our yoga accessories range:
Yoga Mats — non-slip mats in 6mm, 10mm & 15mm thickness