Cole Hersee 81264-BP Boot Cover for Toggle Switch. Designed to protect the physical integrity and performance of Cole Hersee toggle switches. Completely covers toggle switch handles up to 11/16" (17.46mm). Made of highly durable silicone rubber which is tightly bonded to a standard 15/32" 32 thread nickel-plated hex nut. Seals tightly to panel with an O-ring seal. Gray.