This is the Riffe Speargun Wood Finish Maintenance Kit Features: Includes: (2) 4oz. bottles: #1 penetrating, #2 Laminating. Sand paper: (2) 80 grit, (2) 40 grit, (2) 600 grit Instructions. Maintain the finish of your wood speargun stock with our Wood Finish Maintenance Kit. Conditions the wood and gives it that new speargun shine just like when you brought it home. We recommend maintaining your wood stock to keep your speargun in the strongest shape and reduce damage due to drying out.