Item 1 to 5 -Zinc alloy material, polishing & chrome plate finished,100mm length,2pcs innocuity o-ring, the o-ring diameter according ususlly wine bottle diameter. -packing: 1pcs/pvc bag, 50pcs/inner box,300pcs/ctn, n.w/g.w.:30/32kgs, ctn size:31.5x21.5x10cm, 187,500pcs/20ft. Item 6 to 10 -Zinc alloy materail, pearl powder finished, plastic cover,90mm length,2pcs innocuity o-ring, the o-ring diameter according usually wine bottle diameter. -packing:1pcs/pvc bag,50pcs/inner box,300pcs/ctn,n.w/g.w.:17/19kgs,ctn size:31.5x21.5x10cm,316,200pcs/20ft.