Spider 3.0 Hotend Kit is All Metal design which can reach 300? to accomplish better effect of printing with high temperature filaments. It is compatible with PLA, ABS, PETG, TPU, PP, PC, PEEK, PEI, Nylon and more filament. The overall melting zone is increased by 30%, the length is 27.3mm, which offer a smooth printing experience even with 0.8mm Nozzle. Whats more, the high-temperature heat-resistant insulation sheet is added to maintain the temperature of the melting zone, this upgrade all metal hotend kit supports 300mm/s high speed printing.