The lens container is suitable for the following M-Lenses from Leica's current portfolio:
 
TRI-ELMAR-M 16-18-21 f/4 ASPH. (11626)
SUPER-ELMAR-M 21 f/3.4 ASPH. (11145)
SUMMICRON-M 28 f/2 ASPH. (11672)
ELMARIT-M 28 f/2.8 ASPH. (11677)
SUMMARON-M 28 f/5.6 (11695)
SUMMILUX-M 35 f/1.4 ASPH. (11663)
SUMMILUX-M 35 f/1.4 ASPH. (11675)
SUMMICRON-M 35 f/2 ASPH. (11673)
SUMMICRON-M 35 f/2 ASPH. (11674)
APO-SUMMICRON-M 35 f/2 ASPH. (11699)
APO-SUMMICRON-M 50 f/2 ASPH. (11142)
SUMMILUX-M 50 f/1.4 ASPH. (11688)
SUMMILUX-M 50 f/1.4 ASPH. (11892)
SUMMILUX-M 50 f/1.4 ASPH. (11891)
APO-SUMMICRON-M 50 f/2 ASPH. (11141)
SUMMICRON-M 50 f/2 (11826)
APO-SUMMICRON-M 75 f/2 ASPH. (11637)
MACRO-ELMAR-M 90 f/4 (11670)

Furthermore the lens container suits all lenses with M-Bayonet with a maximum height of approx. 80mm (without bayonet) and a maximum width of 68mm.