Please Note: We have a minimum order requirement for this item of $100.00. You can combine other measurement items found in this section to meet the minimum. Thank you.Phosphorescent (glow-in-the-dark) adhesive-backed or magnetic-backed and black/white magnetic-backed. All have a 1mil polyester matte finish topcoat for chemical and abrasion resistance and come with a 11/32" diameter pilot hole. The phosphorescent media can remain clearly visible to the acclimated eye up to 8 hours. The magnetic-backed circles, for use on ferrous surfaces, are easy to apply and offer phase adjusting to fixed pointers.3/8 square pointer,3/8 triangle pointer .These come in white adhesive backed,phosphorescent adhesive backed,White magnetic backed,Phosphorescent magnetic backed.Sizes range from 2 3/4 in.-8 in . Please call for quote.