Soft Brush Does Not Hurt Keyboard: Special selection of nylon brush with moderate softness and hardness, three-row design with high pore strength, good elasticity, stiffness and compactness, more labor-saving friction. Multifunctional Cleaning Kit: Flocking sponge can clean the dust in the wireless charging case of the earphone. High-density brush can clean the dirt on the sound outlet hole of the earphone. Metal pen tip can clean the stubborn dust Easy to pull keys: With a simple key puller, the change of key cap is no longer laborious and the removal of key cap is cleaner and more thorough. Separated Dual Head Design: 5-in-1 computer cleaning kit with Nylon Bristles, Flocking Sponge, High-density Brush, Metal Pen Tip and Keycap Puller, dual head hidden design to meet a variety of cleaning needs. Easy to deal with all kinds of cleaning needs: 4 kinds of cleaning head, multi-purpose, deep cleaning every corner of the keyboard and earphones, make dust nowhere to hide.