Absolutely. With the SelectTech 552 Dumbbells, the weight can be adjusted from 5 to 52.5 lbs (2.26 to 23.7 kg). From 5 to 25 lbs (2.26 to 11.3 kg) increments of 2.5 lb (1.13 kg) are used; from 25 to 52.5 lbs (11.3 to 23.7 kg) adjustments are made in 5 lb (2.26 kg) increments making it versatile enough for strength trainers of all abilities. The SelectTech 1090 Dumbbells can be adjusted from 10 to 90 lbs (4.5 to 40.8 kg) in 5 lb (2.26 kg) increments for anyone looking for a more intense workout. The SelectTech 840 Kettlebel can be adjusted from 8 to 40 lbs (3.5 kg to 18 kg) in the following increments: 8 lbs (3.5 kg), 12 lbs (5.5 kg), 20 lbs (9 kg), 25 lbs (11 kg), 35 lbs (16 kg), and 40 lbs (18 kg). The SelectTech 2080 Barbell and Curl Bar can be adjusted from 20 to 80 lbs. in 10 lb. increments.