Coloplast Self-Cath Plus Soft - 16" Straight Tip Hydrophilic Intermittent Catheter activates upon exposure to water. The smooth, fire-polished eyelets and uncoated GripZone area offer added comfort when inserting or removing the intermittent catheter. This catheter is softer and more pliable than other catheters. The softness allows for added comfort and ease of use. Formerly manufactured by Mentor. French Size: 16. Each, Box of 30.