65 2-ounce clear LDPE Boston round bottle with a 16 gauge stainless steel needle. (0.065" OD × 0.047" ID, 3/4" long) engineered for thick formulations—glues, cements, glazes, epoxies, and heavy greases.
49 is 18 gauge gauge stainless steel needle. (0.049" OD × 0.033" ID) for accurate application. Ideal for glues, acrylic paints, synthetic oils, and firearm lubricants like Ballistol.
