... plastic 2.Function:light up flashing 3.shape:christmas cap shape 4.OEM led colors are available cap ... + pin or plastic + pin or PCB board +pinRound shape Size Diameter 20mm, 25mm, 30mm, 32mm, 35mm, 38mm, ... , 75mm, 80mm, 90mm, 100mm, 130mm, 150mm.Square Shape Size 25mm x 25mm, 40mm x 40mm, 50mm x ... 50mm, 55mm x 55mmRectangular Shape Size25mmx25mm, 40mmx40mm, 50mm x 50mm, 55mm x 55mm ...