 Greenlane Holdings Inc. and KushCo Holdings Inc. said Wednesday they have agreed to merge in an all-stock deal that will create one of the biggest makers of accessories for the cannabis industry. Under the terms of the deal, KushCo shareholders will receive about 0.2546 shares of Greenlane Class A common stock for each share owned, equal to a 6.3 premium over KushCos 20-day volume weighted average closing price ending on Tuesday. 