Silicone Tube, 2mmX4mm, 6.56', Flexible Silicone Rubber Tubing, Translucent, for Pump Transfer Silicone rubber tube: will withstand repeated use and for visual inspection of fluids. Net Weight: 33g; Package Content: 1 x Silicone Tubing; Main Color: Clear Product Type: Unreinforced Silicone Tubing: Peroxide Cured ; Inner Dia (ID): 2mm Good electrical and weather ability properties: resists u.V., ozone, gases, and moisture. Use for fluid handling, peristaltic pumps, siphoning, draining, aquaponics and water or oil change, etc.