What's in the box:

Double Bass Pedal Direct Drive Bass Drum Kick Pedals (Black)

Features:
Double Chain Drive -- the operation of bass pedals is more accurate and stable.
Spring lock has better toughness and smoothness.
The pedal is designed with anti-skid grille to prevent it from falling off in the process of trampling and make it more stable.
Package comes with kick pedals, adjustable connecting rods, hammers and wrench.
Perfect accessories kits for drum percussion instruments.

Specifications:
Material: Metal
Color: Black
Item Size: 70-87 * 33 *22.5cm / 27.56-34.25 * 12.99 * 8.86in
Item Weight: 4020g / 141.8oz
Package Size: 37 * 35.5 * 20.5cm / 14.57 * 13.98 * 8.1in
Package Weight: 4920g / 173.55oz

Package List:
2 * Kick Pedals
1 * Sdjustable Connecting Rods
2 * Hammers
1 * Wrench