Magnesium Boot Toe Sliders - Composite toe slider compound lasts up to four times longer than plastic-based sliders - Magnesium slider does not get hot - Gives excellent feel and feedback; adds leverage when maneuvering the bike around corners on the track - The slider of choice for AMA Superbike, British Superbike and World Superbike riders - Can be used on Alpinestars Supertech, SMX Plus (not for SMX Plus 2011-2015), SMX-R and SMX-4/SMX-4 Stella boots