Use these tips to reduce sample retention for precision. Retention level is 10 times lesser with viscous samples than standard pipette tips. Highly homogenous surface is free of defects, preventing non-specific binding. Manufactured from ultrapure USP Class VI certified, virgin polypropylene. DNase, RNase and Pyrogen free. Additional Info: Micropipette Tips, Low Retention, Pp, 2 - 200 ?L, Ultra Point Tip Orifice Package Size(L x W x H): 13 X 8.5 X 1.5 (IN) Categories: Pipettes, Tips HTS Code: 3926.90.9910 UNSPSC: 4.11216e+007 Country Of Origin: INDIA