Features Consistent formulation for exact weight viscosity Resists temperature changes, making it ideal for use in a wide variety of applications and climates Great for use on GBBs, AEGs and all other types of Airsoft equipment Ideal for all purpose use with camping, fishing, tools, and other outdoor equipment No petroleum, safe to use on all rubbers Different weight oils are color dyed for quick and easy identification Comes in a squeeze bottle with drip tip and cap Angel Custom Silicone Oil comes in 3 different weights: Light (100 CST), Medium (300 CST), and Heavy (1,000 CST). Choose your weight according to your needs and application:Light: For general use on plastics and rubber; frost-proof to -40F Medium: For rubber, plastics, and metals in high wear applications, prevents o-ring cracking; frost-proof to -40F Heavy: For high wear metals with sliding and rolling motion and high temperature applications ; frost-proof to -30F Capacity: 50mL