–1ML/1Gram Vape Cart– Made with plant derived diluent. NO VITAMIN E ACETATE!– Dilution ratio 1:1, Break-Thru Easily Obtainable.– Carts are C-cell Ceramic Coil, Glass Tank and 510 threading, Refillable.– Food and medical grade materials, Not that cheap shit most people sell.– These carts will not leak or breakdown. Tested with 100’s of carts.–Variable Voltage battery recommended 3.8-4 Volts (or 10-12 Watts).That setting works well without any discoloration or flavor issues.