What's in the box:

Aibecy 3D Printer Parts Extruder Retrofit Kit TPU Flexible Filament Short Range Extruder for ABS/PLA/PETG/Soft 1.75mm Consumables (Standard)

Features:
3D printer extruder retrofit kit for single extruder direct drive machines.
Compatible with Wanhao Duplicator i3 (and PLUS) or other 3D printer DIY.
Print with flexible materials, higher resolution, and fewer failures.
Also prints ABS and PLA better than your other extruder.
High quality and durable.

Specifications:
Package Size: 10.3 * 7.4 * 2.5cm / 4.1 * 2.9 * 1.0in
Package Weight: 100g / 3.5oz

Packing List:
1 * Extruder Kit