Dental 4 Bleach Shade Guide 4 Colors Bleached Chart BL1 BL2 BL3 BL4 Teeth Whitening Based Vita A-D Artificial Dentition Bleaching. ✅ Features: This dental bleach shade guide includes 4 whitening shades (BL1, BL2, BL3, BL4) based on the Vita A–D system, designed for accurate comparison of teeth whitening results.
eBay