Rock Tumbler Gem Refill Kit Mexican Crazy Lace Agate Rough 8oz Crazy lace agate rough from mexico-great refill for the beginner or novice hobbyist, or advanced tumbler. . Your stones will be typical of what is shown. Pieces shown are actual random examples of this parcel & gem's colorization. Long time favorite of hobbyists, cutters-getting scarcer this nice! Takes an exceptional polish, each stone ranges roughly from 1/2" dia to 1 1/2" dia. Bright reds, superior "crazy" banding-red, brown, grey and white banding. Each bag averages 10-12 chunky, gemmy pieces-you will be very happy!