Woot offers PowerBlock Sport EXP Stage 1, 2 or 3 for $89.99 (reg $179). Free shipping for Prime Members.

Product Description:
Finally, strength training equipment that will fit your lifestyle and your space. Replace 16 pairs of dumbbells in the space of 1 with the Sport EXP. Need more weight? The Sport EXP can be expanded to 70 lbs per hand and again to 90 lbs per hand with optional expansion kits (sold separately). All in one stylish pair of adjustable dumbbells you can do any dumbbell exercise with to strengthen your body from head to toe.
Note: The Sport EXP and PowerBlock EXP are the same product, but different colors.

• Sport EXP = Metallic grey finish with black color bands
• PowerBlock EXP = Black finish with red color bands

Sport EXP Stage 1 Set

• Sold in pairs and ships in two boxes
• Replaces 16 pairs of dumbbells / 825 lbs. of weights
• Expandable to 70 or 90 lbs. per hand with optional expansion kits (sold separately)
• Increments – 2.5, 5, 7.5, 10,15, 17.5, 20 25, 27.5, 30, 35, 37.5, 40, 45, 47.5, 50 lbs per hand
• Dimensions 12″L x 6.5″ W x 6.5″ H
• Handles: An open design of the handle allows for increased range of motion. Comfortable contoured rubber grip.
• Weight Stacks: Welded solid steel construction. Powder-coated finish.
• Side Rails: Bands on the side rails show the weight of the dumbbell selected with the pin. The pin covers the band/rail that's been selected to easily show what the weight is.
• Auto Lock: EXP models have an 'Auto-Lock' to make micro adjustments by reducing the handle weight by 2.5 or 5 lbs. The two 2.5 lbs. inside the tubes at the base of the handle can be removed by pulling on the lever. Tilt the handle back so the inner weights don't spill-out, then gradually tip the handle forward to remove the weights. Manually close the lever or insert the handle in the weight stack to close automatically.
• Selector Pin: Simple and efficient. Insert the magnetic polypropylene pin into the slot to select the desired weight. The pin has a 500 lbs. max load.
• Dimensions: Sport EXP (90 lbs. configuration) : 16"L x 6.5"W x 6.5"H Sport 50 : 12.5"L x 6.5"W x 6.5"H Sport 24 : 10.5"L x 5.25"W x 5"H
• For home use only

Stage 2 Expansion Kit

• Need more than 50 lbs per hand? No problem, the Sport EXP Stage 2 Kit will expand your Stage 1 set to 70 lbs per hand.
• Expands Sport EXP Stage 1 Set from 50 to 70 lbs per hand
• Adds an additional 6 increments
• Sold as pair
• Ships in 1 box
• Stage 1 is required for use

Stage 3 Expansion Kit

• Need more than 70 lbs per hand? Going beast mode? No worries, the Sport EXP Stage 3 Kit will expand your 70 lb set to 90 lbs per hand.
• Expands Sport EXP 70 lb Set up to 90 lbs per hand
• Adds an additional 6 increments
• Sold as pair
• Ships in 1 box
• Stage 1 AND 2 are required for use