and only four (which can be signed) disappear one at a time only to appear each in a different pocket

No palms or switches

The illusion is one of depth perception and involves stereopsis: depth perception arising from the different perspective each eye has of a three-dimensional scene

Quality through and through

Devil's Bandana V.3 - Precious Stones Collection | Lee Alex (Black Pearl) D’Angelo and only four (which canLee Alex presents Devil's Bandana V. 3 "Precious Stones Collection" Designed by Lee Alex and inspired by the natural colors and clarity of precious gemstones. A choice of three stones to suit your personality: BLACK PEARL speaks of quiet strength and hidden wisdom. RUBY carries the heat of the heart life, courage, desire. SAPPHIRE brings balance and truth, steadying fire with reason. Together, they form a harmony of experience, emotion, and