PLEASE NOTE: These stickers are hand cut and as such are not 100% round. Therefore they may require additional trimming before installation. -Brent Braun

Tango Magic's "teflon circles" are for Slippery Expanded Shells. These are extremely thin adhesive tapes, adding it to the inside of the Slippery Shell makes there surface more slippery. 

Includes 10 Teflon Circles.