"1. Package Includes: A handle and 10 pins come separately in a box. The handle includes 8 slots to arrange, totally 10 pins(2 for spare use) CAUTION: When you first open the box, be careful not to hurt yourself since the needles are sharp and thin. 2. Quality Material: The handle is made of aluminum and the surface is polished. The ergonomic shape design makes it comfortable to hold. The needle is made of high-quality stainless steel, rust-proof, anti-corrosive, durable, and y to use. Overall size after installation is 0.8x5.7inch(Dia.xH). 3. Uniform & Efficient Stirring: Needle type coffee distributor can easily dispense lumps of ground coffee, 0.4mm thick and long needle for even distributing, wide strrring area, stirring needles effectively improve the spatter problem caused by the agglomeration of fine powder,or produce channel effects, etc. Optimize extraction. 4. Use Instructions: 1. Put the black handle upside down on the table. 2. Insert the needle vertically into the slots. 3. push the needle handle slowly downward by turning it left and right repeatedly, if there's obstacle during the insertion, adjust the angle and try again! (Do not press down forcefully to avoid needle handle being bent) 4. Not until needle handle is fully inserted into the hole does the installation complete."