The quality of your tips and adhesives will be the difference to a set that just looks good and one that looks good and lasts!
When it comes to quality nail abrasives, (files), they'll save you time and in essence money! Time=money

LCN Nail Tips:

 Tip 100E - Flat Style, created from virgin ABS plastic - to give incredible elasticity and strength.  The 100E will fit most clients but is specially designed for nails that do not have a large degree of arch or curvature.  A flat, tapered-sides, with a full-thin well.  Easy to fit and blends quickly.  Available in a 250 count assorted Pro-pack and also in a 50 bag - for specific sizes -#1-10 and an assorted 50 bag.

 Tip 700s - Arched Style, created from virgin ABS plastic - to give incredible elasticity and strength.  The 700s is a universally fitting tip - you will find that it fits most if not all clients.  A natural curved, parallel sides with a full-thin well.  Easy to fit and blends quickly. Available in a 250 count assorted Pro-pack and also in a 50 bag - for specific sizes -#1-10 and an assorted 50 bag.

LCN Nail Adhesive:

 Fastener- LCN nail adhesive is an easy to use medium viscosity - making tip application a breeze, allowing time to set the tip. Available in the easy to use 2ml.  (*Rapid Fastener is also available, it is a thin viscosity, speedy set.)

 Banana Thin  - White - The banana/boomerang shape give these files an edge up over straight files, when trying to reach hard to file areas, such as the cuticle area.  Same great abrasive material - long lasting and disinfectable. Available in a 100/100 grit or a 120/220 grit.  (I like the 120/220, for finishing the cuticle line and blending the same area for fills.)