local RS = game:GetService("RunService").RenderStepped

function FindTool()
local found = false
local tool = nil
for i,v in pairs(game.Players.LocalPlayer.Character:GetChildren()) do
if v.ClassName=="Tool" then
found = true
tool = v
end
end
if found then
return true, tool
end
end
while RS:wait() do
for i,v in pairs(workspace.SandBlocks:GetChildren()) do
local pass, tool = FindTool()
if not v:FindFirstChild("Rock") and pass then
tool.RemoteClick:FireServer(v)
RS:wait()
end
end
end