Designed specifically to make mounting tight and stubborn tyres a less painful experience. For use on both tubeless and tubed tyres. Clips onto the rim to help hold the mounted parts of the tyre in place. Concurved edge fits snugly with the rim, enabling better engagement with the tyre bead, and easier tyre removal. Thin edge slips under the tyre bead easily, especially handy when there is a tight space between tyre bead and rim. Specification Material: Glass-fibre reinforced high polymer. Size: 120 x 27 x 6mm. Weight: 16g / pc.