The package includes a total of 20 connectors. The plastic connectors are made of resistant ABS to securely join the panels. Compatible with modular closet and wire grid modular cubes. Each connector has 8 slots for panel corners; the inner width of each slot is 4mm. Easy to install and attach to the panels; you can put the panels together, take them apart and reconfigure as many times as needed. Features - Color: Black - Material: ABS - Size: 3.7 x 3.7 x 0.5cm - The package includes a total of 20 connectors. - The plastic connectors are made of resistant ABS to securely join the panels. - Compatible with modular closet and wire grid modular cubes. - Each connector has 8 slots for panel corners; the inner width of each slot is 4mm. - Easy to install and attach to the panels; you can put the panels together, take them apart and reconfigure as many times as needed.