My daughter's friend had an old guitar with a broken down bridge and a loose neck joint ... it is what happens when someone puts steel strings on a classical guitar! I re-glued the neck and replaced the broken bridge saddle using a replacement from the Bridge Saddle Assortment kit. This was an inexpensive guitar so using a plastic saddle was more than adequate for the instrument. It is now playing nicely and it's owner is re-discovering her joy of playing guitar (with strict instructions to only use nylon strings in the future!). The Bridge Saddle Assortment is great for repairing medium to low end instruments on a budget, I have 3 other guitars in the queue for cleanup and repair and this assortment should come in handy for all of them (while keeping the cost to a minimum) Thanks!