● Made of medical-grade high impact polystyrene● Ultra-smooth loop surface design facilitates uniform and smooth streaking without damaging the gel surface● Loops available in 1μL and 10μL sizes with strict measurement; the opposite end of each loop can be used as a needle● Gamma radiation sterilized; non-pyrogenic● Packed in zip-seal bag, includes a piece of cardboard with production descriptionCat #VolumeDescriptionColorSterileUnit65-00011μlLoopsBlueYes25/Bag40 Bags/Case65-001010μlLoopsOrangeYes25/Bag40 Bags/Case