1、Guitar effects pedalboard, 3 sizes for options: S(for 3-4 effect pedals)/ M(for 6-8 effect pedals)/ L(for 8-12 effect pedals). 2、Durable aluminum alloy structure with black oxidation treatment surface, sturdy and anti-rust. 3、Special screw fixation design, with no need for sticking tapes, you can fix your effect pedals on the pedalboard by the included screws. 4、The pedalboard makes it easy to organize your effect pedals, and let them look more tidy and more professional. 5、Come with a carry bag for convenient storage and transport. Features: Guitar effects pedalboard, 3 sizes for options: S(for 3-4 effect pedals)/ M(for 6-8 effect pedals)/ L(for 8-12 effect pedals). Durable aluminum alloy structure with black oxidation treatment surface, sturdy and anti-rust. Special screw fixation design, with no need for sticking tapes, you can fix your effect pedals on the pedalboard by the included screws. The pedalboard makes it easy to organize your effect pedals, and let them look more tidy and more professional. Come with a carry bag for convenient storage and transport. Specifications: Size: S / M / L (Optional) Color: Black Board Material: Aluminum Alloy 3 Sizes for option: S--51.7 * 18 * 4cm/ 20.4 * 7.1 * 1.6in M--51.7 * 33.2 * 4cm/ 20.4 * 13.1 * 1.6in L--66.7 * 33.2 * 4cm/ 26.3 * 13.1 * 1.6in Package Size: 60.5 * 26.5 * 10cm/ 23.8 * 10.4 * 3.9in(S); 62 * 41 * 10cm/ 24.4 * 16.1 * 3.9in(M); 74.5 * 40 * 10cm/ 29.3 * 15.7 * 3.9in(L) Note: The effect pedals showed in the pictures are not included. Package List: S: 1 * Pedal Board 16 * Fixture Blocks 21 * T Screws 17 * Hex Screws 1 * L Shape Wrench 1 * T Shape Wrench 2 * Hooks 3 * 4mm Screws 1 * Carry Bag 1 * Users' Manual(English & Chinese) M: 1 * Pedal Board 32 * Fixture Blocks 33 * T Screws 37 * Hex Screws 1 * L Shape Wrench 1 * T Shape Wrench 2 * Hooks 3 * 4mm Screws 1 * Carry Bag 1 * Users' Manual(English & Chinese) L: 1 * Pedal Board 40 * Fixture Blocks 41 * T Screws 45 * Hex Screws 1 * L Shape Wrench 1 * T Shape Wrench 2 * Hooks 3 * 4mm Screws 1 * Carry Bag 1 * Users' Manual(English & Chinese) S: 1 * Pedal Board 16 * Fixture Blocks 21 * T Screws 17 * Hex Screws 1 * L Shape Wrench 1 * T Shape Wrench 2 * Hooks 3 * 4mm Screws 1 * Carry Bag 1 * Users' Manual(English & Chinese) M: 1 * Pedal Board 32 * Fixture Blocks 33 * T Screws 37 * Hex Screws 1 * L Shape Wrench 1 * T Shape Wrench 2 * Hooks 3 * 4mm Screws 1 * Carry Bag 1 * Users' Manual(English & Chinese) L: 1 * Pedal Board 40 * Fixture Blocks 41 * T Screws 45 * Hex Screws 1 * L Shape Wrench 1 * T Shape Wrench 2 * Hooks 3 * 4mm Screws 1 * Carry Bag 1 * Users' Manual(English & Chinese)