Vtg Lot of 5 Diener and Russ Dinosaur Hard Erasers Triceratops Dimetrodon

These are all pre-owned and in used condition. The yellow one is a Russ and the others are Diener. They have stains, marks and wear on them. Please see all photos for exact item.  They are approximately 1 1/2" to 2 1/2" long.