Back Forty Kush Mint Hybrid 0.45 g cartridge has a refreshingly and sharp burst of mint with a gentle lemongrass finish. Back Forty Kush Mint Hybrid strain has a refreshingly and sharp burst of mint with a gentle lemongrass finish; the main terpenes are menthol and limonene. This potent vape cartridge contains no fillers, and is perfect for your Back Forty adventures.