A. [Support One-Click Erasing and Lock Screen] Press the lock button, and the written content above will not be lost due to accidental deletion. Or just press the erase button at the bottom of the electronic basketball coaching board, and all the scribbles will disappear. It is environmentally friendly and saves time for showing and discussing strategic directions. B. [Paperless Design] The doodle board for basketball is made of plastic with a rounded - corner design, which has good shock resistance. It is a reusable coaching board that can be erased up to 120,000+ times. The LCD board can save a lot of paper and pencils. You don't have to worry about the marker running out of ink. It won't hurt your hands or stain clothes as it is ink - free, and it is environmentally friendly. C. [Widely Use and Portable] It is easy to carry in schoolbags, briefcases, handbags, etc. You can take the basketball coaching board anywhere you need. The board is widely used in school teaching, basketball teams, and basketball clubs for formulating game - day strategies, daily training plans, tactical seminars, training guidance, technical exchanges, etc. D. Size: 16 inches. Material: ABS. Colour: Black. Package Contents: 1 x Basketball Coaching Board (with pen). Only the above package content is included, and other products are not. Note: Light reflection and different displays may cause the color of the item in the picture to be a bit different from the real thing. The measurement error is allowed to be +/- 1 - 3 cm.