The purple WB4 clay bar is the more aggressive material

Xtrax Scent Odor Eliminator contains special ingredients that neutralize foul odors rather than just covering them up

The product turns purple upon contact with iron particles

Available in single bag or case of 6

No charge for this item

Plastic Razor Blades - 100pk The purple WB4 clay barThere are no better tools than plastic razor blades. Unlike metal razor blades, plastic razor blades are will not damage surfaces, like paint and glass, when you scrape off decals, bird droppings, tree sap, and other sticky materials. Use plastic razor blades anywhere that you would use a steel blade.