Rumble Roller Long Size Total Length: 78cm Diameter: 11.5cm (excluding protrusions) The longer size allows for vertical use from the cervical spine to the lumbar spine. I bought it because I heard American football players use it. [Reason for scratches and dirt] There are wrinkles on the protrusions, so please check the photos. The main body has been wiped with disinfectant spray and disinfectant wipes. ■Purpose: For muscle, fascia, and trigger point release & stretching ■Symptoms that can be expected to be effective: Promotes more effective stretching ■Material: EVA / Polyolefin blend (waterproof & latex-free) Total Length: 78cm Diameter: 11.5cm (excluding protrusions) You can use it in combination with yoga balls, yoga blocks, etc., or roll around on a yoga mat for relaxation. Thank you for viewing. This is a medium-sized foam roller with a protruding design, perfect for fascia release. - Type: Foam Roller - Color: Black - Size: Medium Size - Features: Protruding design - Brand: Rumble Roller Thank you for viewing.