What's in the box:

1 X ZTTO Bicycle Chain Guide CG02 31.8mm-35mm Clamp Mount Chain Guide Direct Mount E type Adjustable For MTB Mountain Gravel Bike 1X (Standard), Standard

Features:
Made of fine quality Aluminium Alloy, practical to use.
Anti-rust and anti-corrosion.
Use ultralight high-strength AL7075 Aluminium Alloy with fine quality CNC machined, light weight buthigh strength.
Spec: f35mm~ 31.8mm mount / E type mount.

Specifications:
Brand: ZTTO
Material: 7075 aluminum alloy CNC; nylon
Spec: f35mm~ 31.8mm mount / E type mount
Weight: about 52g
Perfect for 1x system
Package size: 250 * 150 * 40mm / 9.8 * 5.9 * 1.6in
Package weight: 55g / 1.9ounce

Packing List:
1 * Chain Guide
4 * Washer
1 * Frame Protector