What's in the box:

1 X Bike Bicycle 1 1/8 Inches Threadless External Headset Sealed Cartridge Bearings (Silver), Silver 34Mm

1 1/8" threadless headset with two smooth sealed cartridge bearings.

Features:
1 1/8" threadless headset.
With two smooth sealed cartridge bearings.
CNC precision machined light 7075 aluminum alloy.

Specifications:
Material: 7075 Aluminum alloy
Color: Red / Blue / Green / Silver / Gold / Black (optional)
Outer diameter: 45mm / 1.77in
Crown race diameter: 30mm / 1.18in
Cartridge bearing diameter: 34mm / 1.34in
Stack height: 52mm / 2.05in
Item weight: 110g / 3.88oz
Package size: 5 * 5 * 6cm / 1.97 * 1.97 * 2.36in
Package weight: 112g / 3.97oz

Package List:
1 * Threadless External Headset