لهاية سيليكون دائرية 6 أشهر فما فوق

Liquid caoutchouc is a sustainable raw material, produced from collected tree sap of the rubber tree (hevea brasiliensis). After the tree sap is harvested, proteins are isolated and discarded, and the remaining pure rubber is poured into the molds. This process eliminates chemical treatments necessary for the more conventional solid rubber manufacturing – and in the end it preserves the raw material’s integrity. * the ummy is assembled by hand. After being taken out of its mold, it is baked in a specialized oven for several days. Afterwards it is washed thoroughly in order to eliminate nitrosamines. Finally it undergoes a strenuous stretch test whose requirements surpass even the european force guidelines