The specification of Le Chi wiper is 2116. Judging from the problem you described, I guess you may use a boneless wiper. Because there is only one pressure point in the middle, the two ends of the boneless wiper are prone to water leakage, especially when the glass curvature is large. This will definitely not happen when you used the original bone scraper before, because the bone scraper has six pressure points, and the pressure is more uniform. There are three kinds of wipers on the market now, with and without bones, but there are differences between them. You can try Bibi's three-stage composite wiper. The three-stage wiper of this brand is also designed with six pressure points (some three-stage wipers have three pressure points), so there will be no scraping leakage, long service life of the wiper, super simple replacement of rubber strips and high cost performance! I hope it helps you.