When purchasing a ball, it is important not to underestimate the correct size. There are two common ways to estimate the correct diameter of a ball:
How to choose a gymnastic ball
Gymnastic balls have a number of uses, primarily as a rehabilitation aid or as a replacement for a classic office chair. They help prevent health problems such as muscle and back pain and constantly force us to maintain a natural and healthy posture. Gymnastic balls are suitable for everyone, from children and adults to seniors.
Choosing the right size
1. Arm length from shoulder to fingertips
- 56 – 65 cm – 55 cm ball
- 66 – 80 cm – 65 cm ball
- 81 – 90 cm – 75 cm ball
- 91 cm and above – 85 cm ball
Also take your body weight into account. If you weigh over 100 kg, a ball with a larger diameter will be more suitable for you.

Photo in Grid
Choosing the right size
Remember that inflating the ball with your mouth will not get you very far. Save your lungs and use a classic pump or handheld compressor to inflate the ball. Only inflate the ball when it has been warmed to room temperature to avoid damaging the outer or inner shell.
Now you know what you need to know before buying a ball. All that’s left is to take a look at our range of ACRA balls and choose the right one for you.
Gymnastic balls
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AcraIn stock 5+Cork wood yoga block 22.2×14,5×7.5cm
Yoga block ACRA Fitness made of natural cork is a reliable tool for yoga practice. Its natural strength and pleasant structure allow for safe and comfortable execution of various…
8,93 € -

AcraIn stock 5+Massage roller roller BLACK D85
Massage roller – roller BLACK, is a modern tool for effective body massage and also for training coordination of movements.
7,63 € -
AcraIn stock 5+ACRA Gymnastic ball 550mm
Gymnastic ball, diameter 550 mm. It is an excellent rehabilitation aid and for fitness exercises. Available in green. Recommended for body height 150 – 185 cm.
7,56 € -

AcraIn stock 5+Massage fitness set (4in1)
The Acra 4in1 Massage Kit is a comprehensive tool designed for self-massage, allowing you to maintain your body in optimal health.
15,47 € -

AcraYOGA WHEEL 13x32cm Cork
The ACRA Fitness Yoga Circle is the perfect companion for your workout. Its soft cork top feels nice against your skin and provides secure support during challenging stretches.
18,93 €Sold out -
AcraACRA L12-MO Aerobic mat 90x50x0,8cm blue
Aerobic mattress Dimensions: 90 x 50 cm, thickness 8 mm Momentarily available in Blue colour. These are high quality Dutch made mattresses.
2,68 €Sold out -
AcraBall OVERBALL 30 cm – green
The OVERBALL has a diameter of 300 mm. It is an excellent rehabilitation aid and for fitness exercises, we deliver it in metallic green color. Maximum load capacity is 100 kg.
3,26 €Sold out -

AcraIn stock 5+ACRA YOGA MAT purple, with position lines
YOGA PAD ACRA FIAL with position lines The ACRA Yoga Mat is the ideal choice for everyone who loves movement and exercise.
19,33 € -
AcraACRA Balancing and massage cushion – purple – D35
This balance and massage cushion (lens-shaped) with a diameter of 33 cm has a wide range of uses – for sports training, rehabilitation and various therapeutic exercises.
9,28 €Sold out -
AcraIn stock 5+Gymnast ball diameter 85 cm, black
Gymnastics ball GIANT with diameter 850 mm with Acra print. It is an excellent rehabilitation aid and for fitness exercises. It comes in metallic purple.
10,05 €














