Weve developed a shock absorbing rubber boot that will also help protect against liquid damage. With fully protected front lens assembly and controls, the strobe guard adds value to Shimpos DT-311A, DT-315A, DY-315AEB and DT-314 stroboscopes by extending the service life of these already rugged metal units. Flashtube life is increased due to the reduced incidence of impact related damage, reducing maintenance cost. 1 year warranty. Pack of 1.