Double-ended explorer. ergonomic handle. Combination of #TU17 end for subgingival calculus detection and #23 end for caries detection. #TU17 end features a balanced tip design for ease and comfort. Hu-Friedy explorers are hand crafted from Duraspond steel, a specially blended steel alloy which provides flexibility and resilience for even the most precise diagnostic procedures. *For further product information, please contact Chat Support*