1. Support: Fully considers computer type, hard disk type, number of magnetic heads, docking area, and other factors. 2. Customized Design: Unique fixed holes, pins, sockets, and other customized designs not only secure the head completely. 3. Good Function: Good "synchronization" and "consistency" function of physical head separation. 4. Many Functions: Helps guide the head safely and easily into and out of the disk area, maximizing safe operation and earthquake resistance for the "head" simultaneously. 5. Practical: The tool's usability is very powerful, more practical, more widely supported, and more thoughtful than the previously listed head tools. Item Type: Hard Disk Head Replacement Comb Material: Plastic List of Hard Drives Supported by the Repair Tool: 401# for HGST--HDP725025GLA380 250G --One disk & Two magnetic heads for WDC --WD3200AAJS-65M0A0 320G --One disk & Two magnetic heads for WDC --WD1600AAJS-00PSA0 160G --One disk & Two magnetic heads Main Purpose: Replace, Swap, and Repair the Magnetic Head, Support Seagate Hard Disk and WDC Data Hard Disk, and it is Easy to Use. 1 x Hard Disk Head Replacement Comb 2 x Pins 10 x Fingertips