These are NEW OEM Poulan Chainsaw Duckbills.  Part #530026119.  Fits the Following Models:

Poulan 112 Gas Trimmer1900 Gas Chain Saw 1950LE Type 1 Gas Chain Saw2025 Gas Chain Saw 2050LE Type 1 Gas Chain Saw2055LE Type 1 Gas Chain Saw 2075 LE Gas Chain Saw2100 Gas Chain Saw 2175 Gas Chain Saw2200 Gas Chain Saw 2250 Type 1 Gas Chain Saw2250 Type 2 Gas Chain Saw 2250 Type 3 Gas Chain Saw2250 Type 4 Gas Chain Saw 2250 Type 5 Gas Chain Saw2350 Gas Chain Saw 2375LE Type 1 Gas Chain Saw2400 Gas Chain Saw 2450 Type 1 Gas Chain Saw2450 Type 2 Gas Chain Saw 2450 Type 3 Gas Chain Saw2450 Type 4 Gas Chain Saw 2450 Type 5 Gas Chain Saw2500 Gas Chain Saw 2550 Type 1 Gas Chain Saw2550 Type 2 Gas Chain Saw 2550 Type 3 Gas Chain Saw2550 Type 4 Gas Chain Saw 2550 Type 5 Gas Chain Saw2550LE Type 1 Gas Chain Saw 2600 Chainsaw Gas Chain Saw2600 Trimmer Gas Trimmer 2700 Gas Chain Saw2750 Gas Chain Saw 2775 Type 1 Gas Chain Saw2775 Type 2 Gas Chain Saw 2775 Type 3 Gas Chain Saw2775 Type 4 Gas Chain Saw 2800 Gas Chain Saw2900 Type 1 Gas Chain Saw 2900 Type 2 Gas Chain Saw2900 Type 3 Gas Chain Saw 3000 Gas Chain Saw3000CB Gas Chain Saw 3050 Gas Chain SawES300 Electric Chain Saw ES350 Electric Chain SawES350WT Electric Chain Saw PP115 Gas TrimmerPP165 Gas Trimmer PP210 Gas Chain SawPT112 Gas Trimmer