This review is for "132 Pieces Sanding Drum Set with Free Box, Power Rotary Tool Sanding Drums for Rotary Tool, Aluminum Oxide Sanding Drum Set", Zalaxt Item model number Zalaxt0004 (ASIN B0CYLFCBWD). Title and ASIN are included in the review because sometimes reviews get re-sorted and are no longer associated with the correct product.The Zalaxt sanding drum set shipped quickly and was packaged reasonably. Humorously, the Amazon listing indicates that the kit contains mandrels in three sizes: 1/2", 4/8" and 1/4". I didn't pull out my micrometer to check, but I'm pretty sure the 4/8" mandrels are the same size as the 1/2" mandrels. My kit did include 3/8" mandrels. The kit includes a nice plastic storage container in which all parts are dumped -- no partitions to separate sizes.I used the Zalaxt sanding drum kit on a softwood, Eastern Red Cedar. The drums went on the mandrels easily and I was careful not to tighten too much. I did find that after some use the mandrels would get hot and expand a bit, squeezing out under one edge of the drum. When this happened I used an X-Acto blade to trim it and kept working. For under ten bucks, this is a nice sanding kit.