uxcell 14mm x 30mm x 25mm Rubber Bellows Pump Shaft Sealing Mechanical Seal Product Name : Mechanical Seal;Internal Diameter : 14mm / 0.55" Overall Size : 30 x 25mm / 1.2" x 1.0" (Max.D*H);Material : Rubber, Alloy, Metal, Ceramic Main Color : Black, White, Silver Tone Net Weight : 17g Package Content : 1 x Mechanical Seal