La magnésie en morceaux est idéale pour l'escalade lorsque vous avez besoin de plonger votre main dans le sac pour la recouvrir de magnésie. En plus, vous ne perdez pas de poudre dans l'air et vous pouvez l'utiliser jusqu'au bout, sans en gâcher !
Petzl was founded by speleologists Fernand Petzl and Pierre Chevalier. They worked hard and improved their activity and sports climbing. In 1968 they began to produce gear, and they have been on the market since 1975. The company based in France has always been on the front line for innovation and developement: in 1991 Petzl produced the GRIGRI, the first ever belay device with assisted braking. In 2014 new seats were founded in Spain and Germany.
