Constructed with high quality plastic and carbon steel Ideal in pulling, gripping, and expanding exercises to strengthen the body and muscles A great auxiliary training apparatus for sports games or martial arts Perfect for strengthening gripping power, waist power and expanding the chest Features five long springs which can be assembled and disassembled according to personal preference Helps you to easily build a perfect figure at home Package Details Weight: 877.40 g Size: 27.5*12.5*6.00 cm