- Made of SUS304 stainless steel, safe, hygienic and durable 2. Strong 3M adhesive on the back, nail-free wall, strong adhesion 3. 3M adhesive for wood wall, stainless steel, smooth tile, glass, marble, etc. 4. Note: This product can not absorb 201,304 and other kitchen utensils without magnetic stainless steel. 5. Size: 31x4x1.5cm