Abstract: The present invention provides a method for forming microstructure optical elements. The method comprises providing a mold and forming a cavity in the mold according to the shape of microstructure optical elements. The cavity is formed a sealed space, which is vacuumed through an extraction opening arranged near the end of the cavity. Filling material into the cavity is to be formed the microstructure optical elements. Due to an extraction opening arranged near the end of filling process, the filling process is smooth so as to improve the element quality, manufacturing efficiency and transferability.

Abstract: A golf club grip includes a sleeve body having a top cap and a bottom protective rim, and an anti-slip sheet layer extending around the sleeve body between the cap and the protective rim. The sheet layer has a top circumferential margin which is hidden and hemmed by the cap. The sheet layer further includes two axial margins which extend adjacent to each other and which are hemmed by an axial hem structure of the sleeve body. The axial hem structure extends from the cap to the protective rim to receive and hem the axial margins. As the margins of the sheet layer are hemmed and finished by the cap, the protective rim and the axial hem structure, no visible clearance is formed in the golf club grip.