Bought these to take with me to Discount Tire to have wheels balanced. Not sure why Discount Tire only uses 1/4 oz weights. Wheels were never correctly balanced before using these (purchased 1/4, 1/2 and 1oz weights) at Discount. Probably has something to do with them putting 15 1/4 oz weights side by side in a strip about 6" long instead of apply the directed weights in the specified area.