If your marker is dried out

in strength for magnetic glass boards

Magnets of this strength can be used on glass boards with the utmost caution if you are looking for magnets that are very strong

waves and much more

shaped like small "stamps"

Møtrik M4 - Stålmøtrik FZB, 10-pak BF Tier1 If your marker is driedPack of 10 steel nuts with M4 thread. You get a package of 10 pieces. Thread: M4 Model: DIN 934 8 FZB Package: 10 pieces. What does FZB mean? It is an electro galvanization of the nuts (electro galvanizing), which extends their durability and makes them more resistant to rust. However, as they are not acid free, they are not suitable for outdoor use. Good for use with magnets with external thread. Usually you can only buy nuts in large packages of 100