The Antiballing Plate by Grivel, with its in.activein. anti-bott which is the best in the business, meaning it actually works, is an anti-bott for the center bar of all Grivel two-piece crampons Air Tech, Air Tech Light, G10, G12, G14. It will also fit other brands, models of crampons. After 31 December 2005 all Grivel crampons will be delivered with Anti-Bott and Accordeon where appropriate. Accordeon is available as an accessory and included with Anti-Botts that are sold separately. Click on the in.imagesin. link to see Accordeon on other crampon models.