Particle Zoo Quarks & Leptons Slap Bracelets

Powered by quark-antiquark and lepton-antilepton annihilation energy! No, not really, but if the particles were real, they would release quite some energy when you wrap it around twice. The tiniest building blocks of the universe are intriguing for young and old. It is an ideal gift for physicists and students who too often head home from the lab in the dark.

• The reflective slap bracelets are 13-1/4 x 1-3/16 inches (35 x 3 cm)
• Can be used as anklebands or wristbands. Just slap on! 
• One size fits all. 
• They will wrap around and adjust to sizes from kids to adults.The reflectors are long enough to go around pant legs and coat sleeves. 
• Soft velvet-like material on the inside make them comfortable on bare skin and stay put on clothing.
• They can be wrapped around a bag or purse strap when not in use to have them on hand at all times.
• Made in Finland with 3M Scotchlite reflective material and are EN13356 compliant.