This list is for:
12PCS Dental KAVO L68B Style Latch Type Replacement 1:1 Head fit KAVO 68LU/68LH/68LDN NEW
this is a KaVo style 
68LDN type.
low speed, push button. 
CA2.35mm latch head
New. Never Used before.
runs up to 35000rpm for KaVo 2320LN handpiece
13000rpm for KaVo 2307LN
fits all KaVo 2300 series Low peed with removable heads
also for KaVo Conta Angle Handpiece