11 mm Acrylic Transparent Crystal Clear Tri Beads Bulk 1,000 Pieces. We carry a huge selection of Tri-beads of over 30 colors at bulk wholesale pricing. Tri beads are made from plastic which makes them an affordable craft for jewelry projects including ornaments, keychains and bracelets. Around Christmas time many people use tri beads to make Tree Ornaments so we sell tons of tri beads in red, green, white. Tri Beads are also known as propeller beads or cartwheel beads.