Device for exercising the arms of the back of the chest Technical specification: Made of high quality materials It strengthens the arms, back, chest Reduces fat and builds muscle Burns calories Helps to sculpt the upper body It has 3 tapes with different resistance levels: 15LB, 20LB, 25LB For beginners and advanced users. Foldable and easy to use. Maximum arm span: 58 cm. Folded dimensions: 22 cm x 25 cm x 9.5. The kit includes: Brand new arm training device Original packaging