EM security strip for library 1.Based on Cobalt amorphous strip ... side strip ,25mm tail length at one side . Used for school library , public library and bookstores. Also , ... we can supply all short anti-theif label for marchandies ,such as cosmetics ,drugs,cleanner essence ,jewely ... which have a better De/Reactivate effect. 2. our security strip compatible with 3M ,Certus , Dialoc , Checkpoint , ...