MgO magnesia cupels, pack of 30. 

Special "egg crate" tray holds cupels securely and minimizes damage in transit.

Ideal for testing and small scale assaying.

Size 8A. (same diameter as 1-3/4, #8, #8A, #8S) .  Will absorb approximately 80 grams of lead.

Approximate dimensions:
Size	Outer Dia	Dia of Cup	Dia of Bottom	Height of Cupel	Depth of Cup	Weight (Approx)
6A	D	D1	D2	H	H1	(grams)
mm	45.3	38.0	36.9	35.0	12.5	100.5
inch	1.78"	1.50"	1.45"	1.38"	0.49"
Due to shipping and handling, some minor chipping of the cupels is possible and should be expected.  The product is still usable with these small defects should they occur. Free shipping to US lower 48 states only.