The M2L Kit for Kayfun 5 is an accessories for a tighter draw. Included are three pieces with three different diameter(1,6mm / 1,4mm / 1,2mm). It should be placed in the air channel from above, just directly in front of the coil.
The Eleaf iStick bending adaptor is a newly designed genius spare part. Made of stainless steel, It can save space and make the device easier to carry when it is attached with an atomizer. The bending adapter also comes with a 510 spring pin which ensures better contact for your device.