You can customize this part, I use fiberglas gel, but you can use as you wish, be it ordinary gel, polygel or something else. Fiberglas works for me because my nails are thin.
IBD LED/UV Gels Builder Gel Clear, 2 oz
Good polygel that you can use, you have it in clear and pink shade.
Harmony Gelish - Polygel Natural Clear 2 oz
nail lamp - cuter option
Apres - Beta LED Nail Lamp - Nude
nail lamp - cheaper option
UV LED Nail Lamp
I'm using wooden sticks to remove the gel from places where it shouldn't be.
Orange Sticks for Nails, 200pcs 4.5 inch
Use a lint-free wipes and an alcohol to remove any tackiness.