Many raw materical, various specification of dish spring leaf,  the model are as follow: 40X20.8X2.2 , 35.5X18.3X2, 34X16.3X2, 50X25.4X3, 31.5X16.3X2, 16X8.2X0.9,　28X14.2X1.5 , 60*60*15/25, 40*40*15/20……
Every pack 100piece, the price 1.5 dollar /pcs.