Sit-Ups Assistant Device

Specifications:

• Applicable Fitness Equipment: Sit-ups assistant device
• Material: foam + stainless steel tube
• Size: maximum diameter 13.5/5.31"
• Features: exercise equipment, portable, suction cup, loss weight
• Unit Type: piece 
• Package Weight: 0.822kg (1.81lb.) 
• Package Size: 15cm x 10cm x 3cm (5.91in x 3.94in x 1.18in)

Features:

• 100% Brand New and High Quality.
• Small size, not occupy space, lightweight storage.
• Thick soft foam, soft and comfortable without hurting the feet.
• A key switch, start three seconds. Waterproof and moisture proof, safer to use.
• Third gear height, free to adjust. Through the spring snaps freely adjust their comfort level.
• Strong suction, diameter 13.5cm(5.31) after increased, refused to loosen.