1.Universal connector (15mm, 22mm) 2.EVA material, length can be adjusted, easy for transportation and use. 3.Normally 1.6m / 1.8m, length can be customized. Size: Adult: 1.2m, 1.6m, 1.8m Pediatric: 1.2m, 1.6m, 1.8m Package: Sterile ,plastic-paper package Pcs/ctn: 50pcs/ctn(65*46*25cm)