Sports/Fitness: N.O.-XPLODE pre-workout formula from $17, SKLZ Barrel Roller $20 (Reg. $30), more

Today only, as part of its Gold Box Deals of the Day, Amazon is offering up to 60% off highly rated Muscletech protein powders, protein bars and more. Nearly every product in this Gold Box promotion is at a notable price and listed with 4+ star reviews (from hundreds in some cases). One standout is the Muscletech Nitrotech Performance Series (3.97 pounds) for $37.99 shipped. That’s about $27 under the original listing and the best we can find for the 3.97 pound jar. “Nitro-Tech is a scientifically engineered, enhanced whey protein formula designed for all athletes who are looking for more muscle, more strength and better performance”. Rated 4.5/5 stars from over 550 Amazon customers.

From Nutrition Depot (96% positive in the last 12 months [27981 ratings]) via Amazon, we also spotted a notable price on the BSN N.O.-XPLODE (2.45 lb., 60 servings) pre-workout formula for $26.80 $16.80 with free shipping for Prime members or in orders over $35. That’s nearly 50% under the original listing and the best we can find. Rated 4/5 stars from 600 Amazon customers.

Amazon is offering the SKLZ Barrel Roller Ultra-Durable Massage Roller for $19.99 with free shipping for Prime members or in orders over $35. All three models are available at the discounted price (black/extra firm, red/firm and yellow/soft). Alternatively, Jet has the red and black models for the same price, and first time buyers can take an extra 15% off. All three originally went for around $30 and today’s deal is the best price we can find.

Perfect for massaging soft tissue, stretching and increasing muscle flexibility,” they are designed to withstand repeated use, are easy to clean and made of water-resistant foam. Rated 4+ stars, much like the rest of the SKLZ home sporting goods.

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