These adjustable dumbbells replace 15 sets of weights. Weights adjust from 5 to 52.5 pounds, in 2.5 pound increments up to the first 25 pounds. Easy-to-use selection dials for adjusting weights. They are sold as a pair. Easily switch from one exercise to next and with the turn of a dial you can change your resistance, enabling you to gradually increase your strength. Versatile workout for your legs, back, chest, abs, shoulders and arms. Shipping & Handling: Handling time takes roughly 5 - 7 business days. Dumbbells are shipped via UPS ground from our Manufacturer outside of the US. Therefore, you should expect to receive your item within 4 - 6 weeks