1 x Abdominal Rollers. Lean your body forward as you extend your arms, supporting it with the roller. Position the roller before your knees. Grab both handles with your hands and extend your arms. The handle is soft, anti-slip and sweat-absorbent so that your palm 't get sweated or lead to the tumbling problem during the use.The tread does well in the resilience and friction.
eBay