Gift for workout fans: This is a great birthday gift, Christmas gift or anniversary gift, perfect for home, gym or officeYou can practice anytime, anywhere, making your condition more efficient. 1. 2-in-1 design: Abdominal muscle exercise pressure plate support, scientific strength, rejecting abnormal movements and exerting precise force on the abdominal muscles, so that the muscles can be stretched and exercised more. 2. Train your whole body: The Ab roller can increase the strength and clarity of your abdominal, back, shoulders, chest, and shoulders muscles. It also helps you burn calories to shape a better figure for women and men. 3. Double round and automatic rebound: Built-in two-wheel spring and greater resistance can prevent the wheel from slipping during smooth exercise, automatic rebound function can protect you from injury during exercise, especially for beginners. 4. Premium Material: This automatic koło rebound is made of five layers of sound insulation, it is made of stable, environmentally friendly metal with sponge grip, which is non-slip, sweat-absorbing and comfortable. Specification :Material: Metal Product Color: Orange Package Weight: 1900g Package included:1 x koło roller Ab kneeling mat Six layers of acoustic material Quiet noise reduction 6 channels of sound insulation / sound attenuation without harming the floor Double round abdominal exercise machine is different from other double belly wheels, we added thickened rubber paths on the rollers to reduce floor friction, the noise is quieter and will not hurt the floor. Wider and more stable double wheels for safety and no tipping over Wider wheels increase the contact area with the ground to 110mm effectively reducing rocking in the left and right directions suitable for beginners.