uxcell 4mm Air Tube Brass Metal Pneumatic Compression Fitting Connector Coupler Product Name : Compression Fitting;Fit Tube(OD) : 4mm / 5/32"(0.157") Overall Size : 30 x 10 x 10mm / 1.2" x 0.39" x 0.39"(L*W*T);Color : As Picture Show Material : Metal & Brass Weight : 26g Package Content : 1 x Compression Fitting