VisViva

VisViva (from the Latin for "living force") is a historical term used for the first known description of what we now call kinetic energy.What we wanted to accomplish with the VisViva was an evolution of the Endeavor's mindset utilizing a combination of old school and new technologies. Double Response Grooves (an homage to Schmoove grooves), bimetal brass rings, high walls, and 7075 aluminum! Specs: 7075 Aluminum 55mm diam 39.5mm wide 64.5-5 grams (bearing dependent) 4.65 mm gap Dual Groove Silicon-ResponseFlat 10 Ball Steel - $99 Upgrade to CenterTrac for $7! Upgrade to a 10 ball Ceramic for $15!   NEW OLD STOCK NOTICE: NOS do not come with a bag or any accessories - just the yoyo itself and a String Theory String! Thank you for understanding :)