Description: TESTER 68 Mechanical Keyboard Kit: 68-key compact layout, shell made of durable ABS plastic,Powered by 2pcs AAA batteries (Not Included). 2 Mode Connection: 5.0 and wireless 2.4G connections modes. 5.0 support 6 keys anti- for ghost, 2.4G support 19 keys anti- for ghost. 2.4G mode provide 125Hz return rate, long battery life energy saving solution; 5.0 support 2 devices connected at same time and can switch between 2 device. Custom Design: White metal positioning plate. There is a silicone mute pad between the positioning board and the PCBA board.Also the bottom space is filled with foam. Features: White 1.2mm thick and hard double-sided PCBA, CIY hot plug shaft seat, white metal material switch placement plate. The stabilizers is not lubricated at the factory. Size Chart: Keyboard Model: CIY TESTER68 keyboard layout: 68keys compact layout Material: ABS Plastic Keyboard Size: Approx. 310x101x31mm/12.20x3.98x1.22 inch Color: White Switch foot:3pin Switch version:dust-proof Blue/Red/Brown/Yellow(lubricated) Package Includes: Set A: 1 Piece DIY Mechanical Keyboard 1 Piece Manual Set B: 1 Piece DIY Mechanical Keyboard 72 Pieces Switches 1 Piece Manual Note: 1. Option 6, Option 11 and Option 16 is keyboard kit only, The remaining options are Keyboard Kit+72pcs dust-proof Blue/Red/Brown/Yellow pro switches. A switch storage box as your gift. 2. Yellow switches is factory lubricated, can be used without adjust, more convenient. 3. Please allow slightly error due to manual measurement.