Portable Teaching Aids Magnet Blackboard Sticker Self Adhesive Flexible DIY Magnetic Sticker Rectangular Sticky Blackboard

sticker type: magnetic sticker
quantity: 30pcs/sheet
age: > 6 years old
size: 5*2cm(1.97*0.79in)
package: 30pcs/sheet magnetic sticker Adhesive
Make sure to test if the surface on which you plan sticking the adhesive side of the magnets is adhesive friendly. This can be done by applying any type of sticker and seeing if it sticks well. Examples of surfaces that are not adhesive friendly: clothing, wool, beads.

Magnetic surface
Make sure to test if the surface on which you plan sticking the magnetic side of the magnets is magnetically receptive. This can be done by testing it out with any type of magnet. If that magnets sticks well to the surface it's magnetically receptive. Materials which are made up of aluminum or copper (and not iron) are not magnetically receptive for example.