Environmental protection material: The connector is made of high quality ABS plastic, which is environmentally friendly, non-toxic and tasteless and can be used indoors for a long time. The thick design is very durable and will not be broken. It is convenient and simple and very suitable for home use. Stable and Firm Design: The connector has a circular surface with a diameter of 3.7 cm and a thickness of 0. 5cm. The rear of the connector is a transverse recess designed to securely fasten the plastic panel. Ribbed internal plug-in slot design adds friction, a total of 8 card slots, and provides a more secure connection. Easy to install and remove: The connector is very simple to use and does not require any additional tools to complete the assembly step. Insert the panel to be joined into the connector slot, ensuring that all rounded surfaces face outward and are balanced after installation. If you need to disassemble it, you can take it out directly. Explore endless uses: The connector can be used to join different cabinets. The package includes 20 connectors to meet your various needs, such as bookcases, cabinets, shoe cabinets, storage shelves, etc., which can be completed easily and quickly. Warm reminder: Make sure the connector is installed facing out. Opposite connectors are opposite. Also make sure the bottom of the slot is inserted into the bottom of the slot. Otherwise, the installation may be unstable and the product may be affected. 20Pcs Modular Plastic Cube Connectors, Black Connector for Grid Cube Organizer, for Storage Cabinet and Shelf. Makes it quick and easy to assemble the furniture! Functionality Cross Recess Design The rear of the connector is a transverse recess designed to securely attach the plastic panel. Plug-in slot Ribbed Internal ribbed plug-in slot design adds friction and provides a more secure connection. Easy to use Insert the panel to be assembled into the connector slot, ensuring that all rounded surfaces face outward and are balanced after installation. installation. Specifications Material: environmental protection ABS plastic Color: black Size: 3.7*3.7*2cm Weight: 200g Package includes 20 x plastic connectors Warm reminder Make sure the connector is installed facing outward. Opposing connectors are opposite. All dimensions are measured manually with a possible deviation of 0.5-1mm.