EASY USE & STORAGE: Take seconds to assemble and take out the weight plates. Small, convenient, and easy to store. All-for-one dumbbells eliminate the need for multiple dumbbells in your workout space.,STAR-LOCK COLLARS WITH LOOSE-RESISTANT RUBBER BANDS: Threaded ends with star-lock collars provide a safe, secure workout & easy weight plate changes ,14-INCH OR 16-INCH DIAMOND KNURLED CHROME HANDLE: Constructed of high-quality, textured chrome handle for secure, firm, and non-slip grip ,VARIETY OF WEIGHTS AVAILABLE: Yes4All offers 40, 50, 52.5, 60, 105, 200-pound Adjustable Dumbbells ,CAST IRON WEIGHT PLATES FIT 1-INCH OR 1.15-INCH STANDARD BAR: Holes on weight plates fit standard bars of 1" diameter OR 1.15" diameter. Durable cast iron plates covered with black paint finish preventing rust and corrosion for lifetime use.