DENTAL PERFORATED IMPRESSION TRAYS - SET OF 6 Kit includes 3 Upper and 3 Lower Trays (S, M, L)Wrapped arched handles for easy removal. Please note that these Trays are Pediatric Handle and rims are welded to eliminate weak spots Manufactured from High Quality AISI 420 Stainless Steel Reliable * Ergonomic * Lightweight * Long Lasting * Highly Polished