They would make an excellent upgrade over the stock nylon plates that come on so many skates nowadays. They will fit a size mens size 10 boot, but I used them on a pair of mens 9.5. The item "Powerdyne Reactor Neo Size 10" is in sale since Sunday, January 12, 2020.
This item is in the category "Sporting Goods\Outdoor Sports\Inline & Roller Skating\Roller Skates\Men". The seller is "sodenator" and is located in McKinleyville, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Antigua and barbuda, Aruba, Turks and caicos islands, Egypt, Guadeloupe, Iceland, Sri lanka, Uruguay, Russian federation.