Ab Roller Wheel, Abs Workout Equipment for Core Workouts at Home & Gym, Fitness Exercise Equipment for Abdominal, Ab machine with Build-in Spring Resistance

【Ultra-wide Wheel】The 4.8-inch Ultra-wide ab roller offers extra support and stability compared to the common one. Spherical design allows you to carve both sides to engage all sets of abdominals, including oblique muscles.
【Resistance Rolling Out】The ab roller with a built-in carbon steel spring mechanism provides resistance while rolling out, increasing activation of core and abdominal muscles.
【Assistance on the Way Back】The mechanism offers a small amount of assistance when rolling back to the starting position, which allows users to extend further while minimizing pressure on the lower back.
【Ergonomic Handles】Unique ergonomic padded handles are angled to help optimize engagement of arm and core muscles. These non-slip handles are removable for easy transport and storage. Equipped with a knee pad to protect your knees.
【Easy Assembly & Amazingly Durable】You only need to install the handles, the ab roller wheel comes partially assembled, the high-strength stainless steel shaft of the ab roller for abs workout can hold a maximum weight of 400 pounds for your safety.