Pipet Bulb - Latex 2ml $6.73 B001CKY8NC
Natural Rubber Latex Tubing; Amber; Thin Wall; I.D.: 3/16 (4.8mm) ; Wall Thickness: 1/16 (1.6mm); O.D: 5/16 in. (7.9mm); Length 1ft $9.70 B001D8TG6W
Natural Rubber Latex Tubing; Thick Wall; I.D.: 1/4 (6.4mm); Wall Thickness: 3/32 in. (2.5mm); O.D: 7/16 in. (4.1mm); Length 1ft $10.90 B001D8XTOW