Great lubricant for many belts, gears, bearings and wheels on desktop robots, 3D printers and other machines. Supplied in 50ml squeezable bottle with long fine point nozzle in a sealed package. Ideal for Open-builds V-slot wheels as used on many cartesian 3D printers. Also plastic/metal connections such as joints on delta robots and 3D printers. Silicone oil is a great multipurpose 3D printer lube. Silicone oil is very safe - non flammable, non toxic and non-carcinogenic. Professional cosmetic grade safe for skin contact (actually quite good for your skin!). Material Safety Data Sheet available on request. Silicone oil (silicon oil) is long lasting and prevents corrosion by forming a protective layer on metals. Very fluid formulation for excellent coverage and penetration. Very stable over a wide temperature range. Non reactive, non corrosive. Does not contain any petroleum products that can cause some plastics to melt or become gummy over time. Washes out easily with soap/detergent. Well suited to lubricating locks, hinges, treadmills, cross trainers and other gym equipment. Also used for artwork for pouring effects with acrylics. NOTE: Keep silicone oil away from end stop switches and other electrics and electronics as it is not conductive and it will insulate contacts! New 100% recyclable UK made longer tip bottle.