diff --git a/src/pools/dispenser/Dispenser.ts b/src/pools/dispenser/Dispenser.ts
new file mode 100644
index 00000000..0c982d3f
--- /dev/null
+++ b/src/pools/dispenser/Dispenser.ts
@@ -0,0 +1,6 @@
+import Web3 from 'web3'
+
+export class Dispenser {
+  public GASLIMIT_DEFAULT = 1000000
+  public web3: Web3 = null
+}
diff --git a/src/pools/fixedRate/FixedRateExchange.ts b/src/pools/fixedRate/FixedRateExchange.ts
new file mode 100644
index 00000000..66928124
--- /dev/null
+++ b/src/pools/fixedRate/FixedRateExchange.ts
@@ -0,0 +1,6 @@
+import Web3 from 'web3'
+
+export class FixedRateExchange {
+  public GASLIMIT_DEFAULT = 1000000
+  public web3: Web3 = null
+}