4 in. x 3/8 in. High-Density Foam Mini Paint Roller (5-Pack) HD MR 200-5 4 - The Home Depot
CanDo® Foam Roller - PE foam, Blue TufCoat® Finish - 4" x 12" - Half-Round
Amazon.com: Foam Roller for Exercise - Premium Foam Roller Set 4 in 1 - Includes Massage Roller, Foot Roller, Back Roller, for Exercise & Physical Therapy - Ideal for Yoga, Back, Neck,
paint roller:4 inch foam roller sponge| Alibaba.com