TE Connectivity's Raychem Brand 222S121-25C-0 is a specialized EMI Shielded Boot designed to provide reliable protection against electromagnetic interference. This boot is constructed with modified elastomer material for enhanced durability. The adhesive for installation is purchased separately for easy application. With a 20mm expanded inside diameter, this boot is compatible with a variety of cable sizes. Trust in the quality and performance of RAYCHEM Rayaten products for all your shielding needs.