48-piece display of 3"x 4" Double Sided Stainless Steel Shatterproof Outdoor Signaling Mirror soft-wheel What do we mean by

What do we mean by "Hard" and "Soft" Stones

For those wanting to process valuable or delicate materials such as amber

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48-piece display of 3"x 4" Double Sided Stainless Steel Shatterproof Outdoor Signaling Mirror soft-wheel What do we mean byAlso available in bulk, item no CM433 Quantity: 48 piece display Size: 3?x 4? Double Sided Mirror Thickness: 0. 3mm Material: Stainless Steel Hole for Lanyard Shatterproof Ideal for Camping, Hiking, Emergencies, On The Go, etc.