point range between 30-40. It means after you analysis it, it will randomly have 30-40 point.
Note : Attribute Item - Glove means that you need glove to merge it.
More info about rank and attribute item, visit "What is Attribute"
Register it, and click Analysis.
After analyse it, now it is time to merge it. Talk to the person again, choose "Equipment Merge"
Now, you will see that your glove has been merged. It will increase your attack by 18 points if you equip it. Why only 18? Because the applycable rate is only 55%. See the picture below :