Kare-Pro 50 4 in 1 Blade 

Fast, accurate and powerful clipping using a fitted adjustable ceramic blade, adjustable at 0.8, 1.2, 1.6, & 2.0mm. Lasting 4 time longer.

• Fitted
• Adjustable
• Ceramic
• 0.8mm(#30) 1.2mm(#15), 1.6mm(in between a 10 and 15), & 2.0mm(#10)

please note every brand seems to differentiate in their mm and blade numbers. for example an Oster #30 snap on blade is 0.5mm

Heininger, Wahl #30 are 0.8mm 

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