Fangrui Product Details Material: Wood.made From Thin Wood, Eco-friendly, Safe And Reusable, Intended For Chalks. Hole Is Universal Sized And Work With All Standard Door Knobs. When You Need Some Quiet And Space,it Is Good Choice . Hang On Your Bedroom Door , Please Knock Sign Or Seeping Tag, And Keep The Little Trouble Makers Out. Suitable To Use For Reminders, Such As Party Tomorrow Or Pickup At 4:00 And Leave Them On Your Kitchen Cabinet Knobs - You For Sure Not Miss This. These Door Knob Hanger Tags Offer A Way To Label Kids Bedrooms: As , Girls, Baby Room.... Toy Closets, Kitchen Cabinets. Use Them To Write Lovely Messages To Family Or Friends In A Different Way! Colour: Black Material: Wood Package Contents: 6 * Door Sign Only The Above Package Content, Other Products Are Not Included. Note: Light And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.