Perfect Stix PS93 Birch Wood Spa Line Straight Edge Eyebrow Waxing/Ice Cream Stick, 3-1/2" Length, White (Pack of 1,000) by Perfect Stix. $11.26. Straight edge eyebrow waxing stick. Perfect spa stix for the person who likes a small spa for precise control and with small hands. Measures 93mm length by 10mm width by 2mm height.