Color: Blue Color: Blue , closed-cell tubing is used to build up handles on items--such as eating or writing utensils, or toothbrushes---for individuals with coordination, strength, or gripping challenges. The tubing has slip-resistant covering for secure grasp, and is non-water absorbent and dishwasher safe for ease of cleaning. Delivered in a pack of six, the tubing can be cut to length for versatile use, and has a 13/16-inch inner diameter and 1-1/8-inch outer diameter, with 0.21 to 0.29-inch wall thickness. Maddak specializes in home healthcare and rehabilitation products for the senior, disability and rehab markets. We have been recognized as the largest manufacturer in the United States of Aids for Daily Living (ADL). Maddak continues to design and manufacture products that increase mobility, maximize independence and enable people to live more rewarding, dignified and enriched lives.