1. 20 INCH CHAINSAW CHAIN FEATURES: 20 inches (51 cm) bar length, 3/8 inch pitch, .050 inch (1.3 mm) gauge, and 72 drive links. Double-check compatibility with your chainsaw before purchasing. STANDARD CHAINSAW 20 INCH CHAINS – Designed for universal fit on 50-100 cc chainsaws with 20-inch guide bars that require a chain with 72 drive links. Compatible brands include Stihl , Poulan , and Dolmar . CHAINSAW CHAINS WITH QUALITY MATERIALS: Chrome-plated and heat-treated carbon steel chainsaw chains for strength and sharpness. Low vibration for high-precision cutting. Wear-resistant and hardened rivets secure the chain link. 4. PACKAGE INCLUDES: 3 pieces 20-inch chainsaw chains with 72 drive links and bonus 2 pieces 7/32 inch round chainsaw chain sharpening files. 5. IMPORTANT NOTE: This replacement 20 in chainsaw chain is an aftermarket product produced by AR-PRO . Replacement 20 Chainsaw Chains /b br Designed to minimize downtime, these 20-inch chainsaw chains will keep your chainsaw going with lesser time on adjustments and costly repairs. br Chainsaw Chains Parameters: /b br Bar length: 20-Inch br Pitch: 3/8″ br Gauge: .050″ (1.3 mm) br Drive link count: 72 br Compatible With: /b br Dolmar (PS-510, PS-5100S, PS-5105, PS-6100, PS-6400), Husqvarna (55 Rancher, 254XP, 61), Jonsered (625, 630, 670), Poulan (PR5020), and Stihl (026, 028, 029, 004 Magnum) br Note: This is not an exhaustive list. Check your chainsaw’s operation manual to identify the appropriate chain for your chainsaw chain before purchasing. br